
View Poll Results: Is MM127 Prime?  
Yes  16  19.75%  
No  43  53.09%  
Really Don't Know  22  27.16%  
Voters: 81. You may not vote on this poll 

Thread Tools 
20040527, 02:42  #1 
Dec 2003
Hopefully Near M48
2·3·293 Posts 
Is MM127 Prime? Just a Poll

20060321, 23:28  #2 
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2·4,441 Posts 
Someone please find a factor for this number.

20060322, 00:41  #3  
"Phil"
Sep 2002
Tracktown, U.S.A.
2^{2}·3^{2}·31 Posts 
Quote:


20060322, 01:12  #4 
"Jason Goatcher"
Mar 2005
5×701 Posts 
I'd be happy to run a few curves on this number. Maybe someone would be willing to email me the decimal expansion? Then I could work on my Prime95 skills a little bit.

20060322, 01:23  #5  
Jun 2003
3^{2}×5^{2}×7 Posts 
Quote:
Good luck 

20060322, 01:32  #6  
∂^{2}ω=0
Sep 2002
República de California
2·17^{3} Posts 
Quote:
Just to keep people's expectations reasonable, I estimate the odds of this number having a factor that a decentsized distributed search (say on the order of a couple hundred CPUs) could find in the next couple of years at roughly 10%. But what a coup it would be to find one... 

20060322, 01:41  #7  
Jun 2003
The Computer
2^{7}·3 Posts 
Quote:


20060322, 01:52  #8  
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2·4,441 Posts 
Quote:


20060322, 12:11  #9 
Nov 2003
2^{6}×113 Posts 
Such a poll is ridiculous. We have no basis, other than the
prime number theorem on which to make an assessment. For M < x < (1 + epsilon)M, x chosen uniformly at random, the probability that x is prime is 1/log M. For MM127, the "probability" that it is prime (assuming that it just another random integer selected from other integers near the same size) is 1/( M127 * log(2)). This is small indeed. Unless we are VERY lucky and find a small factor, the true answer is computationally out of reach. I don't regard the question as interesting. We already know that that MMp isn't always prime. 
20060322, 14:32  #10  
6809 > 6502
"""""""""""""""""""
Aug 2003
101×103 Posts
2·4,441 Posts 
Quote:


20060322, 18:21  #11  
Bamboozled!
"𒉺𒌌𒇷𒆷𒀭"
May 2003
Down not across
10194_{10} Posts 
Quote:
Seems to be no more ridiculous than the interminable discussion about some cultural activity called "march madness". At least I can follow what's going on here. To be fair, the other thread isn't in the Math subforum. Paul 

Thread Tools  
Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Official 'exchange of inanities' thread [Was: mm127 is prime, cuz I say so]  kalikidoom  Puzzles  58  20151017 16:18 
MM127  Stan  Miscellaneous Math  34  20150619 03:24 
Is MM127 a PRP?  aketilander  Operazione Doppi Mersennes  6  20121031 16:02 
MM127  Dougal  LMH > 100M  26  20091213 09:57 
Poll for new conjectures prime search effort  gd_barnes  Conjectures 'R Us  14  20071222 07:13 